Date.prototype.format = function(format) {
			var o = {
				"M+" : this.getMonth() + 1, //month 
				"d+" : this.getDate(), //day 
				"h+" : this.getHours(), //hour 
				"m+" : this.getMinutes(), //minute 
				"s+" : this.getSeconds(), //second 
				"q+" : Math.floor((this.getMonth() + 3) / 3), //quarter 
				"S" : this.getMilliseconds()
			}
			if (/(y+)/.test(format)) {
				format = format.replace(RegExp.$1, (this.getFullYear() + "")
						.substr(4 - RegExp.$1.length));
			}
			for ( var k in o) {
				if (new RegExp("(" + k + ")").test(format)) {
					format = format.replace(RegExp.$1,
							RegExp.$1.length == 1 ? o[k] : ("00" + o[k])
									.substr(("" + o[k]).length));
				}
			}
			return format;
} 

